Is it possible to change the computer name on a Mac without logging in? Background to this question is the following. My work pc was stolen and I send an erase command to the stolen pc while he was not locateable with the "find my iphone"-app. After one week it seems like the thiefs reconnected the pc and my erase command changed from status "pending" to "erased". The thing what caused some confusion was that the pc had a different name (computer name) when the device appeared in the "find my iphone"-app. So my fear was that they could somehow logged into the device or how does the erase work if someone reinstall the system?
Does someone can help me here?